This study showed that a single injection of a nerve-blocking agent can be used for pain control after a total knee replacement (TKR). The femoral nerve block (FNB) is given when the patient is anesthetized for the operation. The femoral nerve is blocked with a loss of sensation to the front and inner part of the knee. The effects last 12 to 16 hours. There were two groups in this study. All patients were getting a TKR. The first group had anesthesia and a FNB. The second group had anesthesia and a fake nerve block (only saline was injected). During the first 24 hours after the operation, patients with the FNB (Group A) asked for less painkillers than patients who didn't get the nerve block (Group B). Group A also used less morphine during their stay in the hospital. No other differences were seen between the two groups. Both groups had the same results in rehab and stayed in the hospital about the same number of days. The authors conclude that pain after a TKR can be managed with a sin...
Transcutaneous electrical nerve stimulation (TENS) involves putting electrical currents into the tissues of the body. It may sound like a torture device. But it is actually used to treat pain. Doctors don't know exactly how it works. It is thought to create a sensation that overrides the pain sensation in the brain. These researchers tested TENS in patients who had a total knee replacement (TKR). TKR can be a very painful surgery. But medicine such as morphine shouldn't be heavily used in TKR patients. Too much morphine after surgery can cause other problems, such as nausea, vomiting, constipation, and reduced lung function. For this study, TKR patients were divided into three groups. For the first 24 hours after surgery, one group got the standard self-controlled doses of pain medicine. The second group got standard pain medicine plus TENS. The third group got pain medicine and false TENS treatments. (The wires were placed into the bandages rather than onto the body.) The researchers tr...
Neuropathy - distal median nerve
Pain in the wrist or hand that wakes you up at night
May be severe Pain may be felt in other areas, for example in the upper arm (this is called referred pain)
Sensation changes in the thumb and pointer (index), middle, and part of the ring fingers, such as:
Weakness of the hand that causes you to:
Drop things Have difficulty grasping objects
Signs and tests
Your doctor will examine your wrist and ask questions about your medical history. The examination may show decreased sensation in the thumb side of the hand. This is called the "radial" side. There may be weakness of the thumb and difficulty using it to pinch.
Tests that reveal distal median nerve dysfunction may include:
Nerve conduction tests
Tests are ...
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